CN112850415A - Position adjusting clamp of electromagnetic brake - Google Patents
Position adjusting clamp of electromagnetic brake Download PDFInfo
- Publication number
- CN112850415A CN112850415A CN202011179413.2A CN202011179413A CN112850415A CN 112850415 A CN112850415 A CN 112850415A CN 202011179413 A CN202011179413 A CN 202011179413A CN 112850415 A CN112850415 A CN 112850415A
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- CN
- China
- Prior art keywords
- electromagnetic brake
- bracket
- fixing portion
- wedge
- position adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a position adjusting clamp of an electromagnetic brake, which can easily perform the installation operation of the electromagnetic brake. The position adjustment jig (31) is provided with a wedge portion (32) having a guide surface (35a), a guide side surface (35b), i.e., a guide portion, and a back surface (32d), i.e., an abutment surface. The guide surface (35a) positions the fixing portion (742) of the electromagnetic brake (74) in the first direction Y and the second direction X. The guide side surface (35b) positions the fixing portion (742) of the electromagnetic brake (74) in the third direction Z. The back surface (32d) abuts against a wall piece (762) of the bracket (76). The wedge portion (32) is sandwiched between a wall piece (762) of the bracket (76) and a fixing portion (742) of the electromagnetic brake (74), thereby holding the fixing portion (742) of the electromagnetic brake (74) at the mounting position of the bracket (76).
Description
Technical Field
The present invention relates to a position adjustment jig for an electromagnetic brake attached to a bracket of a hoist.
Background
The elevator requires regular maintenance and repair work including disassembly, cleaning, and assembly work of the electromagnetic brake. In the assembly work of the electromagnetic brake, the electromagnetic brake needs to be attached to a bracket of the hoisting machine. However, since the position adjustment of the electromagnetic brake with respect to the bracket is a complicated operation, it is desirable to easily perform the position adjustment of the electromagnetic brake.
Documents of the prior art
Patent document 1: japanese patent laid-open publication No. 2019-094208
However, in the jig used in the method for manufacturing the passenger conveyor described in patent document 1, the sprocket shaft can be positioned, but it is necessary to continuously hold the sprocket adjusted to an appropriate position before fixing it to the truss. Therefore, if the position of the sprocket is maintained to be deviated, the position of the sprocket needs to be finely adjusted, and the mounting work of the sprocket becomes complicated.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a position adjustment jig for an electromagnetic brake, which can facilitate the work of attaching the electromagnetic brake.
In order to solve the above problems and achieve the object of the present invention, a position adjustment jig for an electromagnetic brake according to the present invention adjusts a position of an electromagnetic brake attached to a bracket of a hoisting machine. The position adjustment jig for the electromagnetic brake includes a wedge portion having a guide surface, a guide portion, and an abutment surface. The guide surface positions a first direction of a fixing portion of the electromagnetic brake and a second direction orthogonal to the first direction. The guide portion positions a fixing portion of the electromagnetic brake in a third direction orthogonal to the first direction and the second direction. The abutting surface abuts against the wall piece of the bracket. The wedge portion is sandwiched between the wall piece of the bracket and the fixing portion of the electromagnetic brake, and the fixing portion of the electromagnetic brake is held at the mounting position of the bracket.
The effects of the present invention are as follows.
According to the position adjusting jig for the electromagnetic brake having the above configuration, the work of attaching the electromagnetic brake can be easily performed.
Problems, structures, and effects other than those described above will become apparent from the following description of the embodiments.
Drawings
Fig. 1 is a configuration diagram showing a configuration example of an elevator according to an embodiment of the present invention.
Fig. 2 is a front view showing a hoist according to an embodiment of the present invention.
Fig. 3 is an explanatory diagram showing an intermediate state in which the electromagnetic brake according to the embodiment of the present invention is detached from the bracket of the hoisting machine.
Fig. 4 is a perspective view showing a position adjustment jig for an electromagnetic brake according to an embodiment of the present invention.
Fig. 5 is a front view showing a position adjustment jig of an electromagnetic brake according to an embodiment of the present invention.
Fig. 6 is a plan view showing a position adjustment jig of an electromagnetic brake according to an embodiment of the present invention.
Fig. 7 is a longitudinal sectional view showing a position adjustment jig for an electromagnetic brake according to an embodiment of the present invention.
Fig. 8 is a diagram for explaining an operation of mounting the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state where the position adjustment jig is provided.
Fig. 9 is a diagram for explaining an attachment operation of the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state where the position of the electromagnetic brake is adjusted.
Fig. 10 is a diagram for explaining an operation of attaching the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state of holding the electromagnetic brake in which the position adjustment jig is attached to the attachment position.
Fig. 11 is an enlarged view of the position adjustment jig, the bracket, and the electromagnetic brake in the state shown in fig. 10, as viewed from above.
Fig. 12 is a diagram for explaining an attachment operation of the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state where a position in a direction in which a rotation axis of the electromagnetic brake extends is adjusted.
Fig. 13 is a diagram for explaining an attachment operation of the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state where a position is adjusted in a direction along a plane orthogonal to a rotation axis of the electromagnetic brake.
Fig. 14 is a diagram for explaining an attachment operation of the electromagnetic brake according to the embodiment of the present invention, and is an explanatory diagram showing a state where the electromagnetic brake is disposed at an attachment position.
In the figure: 1-elevator, 3-car, 4-counterweight, 5-main rope, 7-hoist, 9-control panel, 31-position adjusting jig, 32-wedge, 32 a-one end, 32 b-the other end, 32 c-front, 32 d-back (abutment), 32e, 32 f-side, 33-setting, 33 a-upper, 33 b-lower, 35-guide groove, 35 a-guide surface, 35 b-guide side (guide), 71-equipment base, 72-winch, 73-brake disc, 74-electromagnetic brake, 75-rotation axis, 76-bracket, 77-rotation axis, 78-fixing pin, 741-brake body, 742-fixing portion, 742 a-fixing hole, 742 b-front end, 761-mounting piece, 761 a-mounting hole, 762-wall piece, 762 a-plane.
Detailed Description
Hereinafter, a mode of a position adjustment jig for implementing the electromagnetic brake according to the present invention will be described with reference to fig. 1 to 14. In the drawings, the same reference numerals are used for the common components.
[ Structure of Elevator device ]
First, the structure of an elevator according to an embodiment of the present invention will be described with reference to fig. 1.
Fig. 1 is a configuration diagram showing a configuration example of an elevator according to an embodiment of the present invention.
As shown in fig. 1, an elevator 1 according to one embodiment includes a car 3 that moves up and down in a lifting path 100 formed in a building structure, a counterweight 4, a main rope 5, a hoist 7, a deflector sheave 8, a car guide rail 10, and a counterweight guide rail 12. The main ropes 5 suspend the car 3 and the counterweight 4. The main rope 5 is wound around a hoist 7, and the main rope 5 is suspended from a deflector sheave 8.
The lifting path 100 is formed in a building structure, and a machine room 110 is provided on the top thereof. The hoist 7, the deflector wheel 8, and the control panel 9 are disposed in the machine room 110. The control panel 9 controls driving of the hoist 7 to move the car 6 up and down. The car 3 is connected to a counterweight 4 via a main rope 5. In the elevator 1 configured as described above, the main ropes 5 are driven by rotation of the hoist 72 (see fig. 2) of the hoisting machine 7, and the car 3 and the counterweight 4 are raised and lowered in the raising and lowering path 100 in mutually opposite directions and are moved between the seating positions 120 provided on the respective floors.
The car 3 slidably engages with a car guide rail 10 fixed to a wall of the elevator path 100, and is guided by the car guide rail 10 to be raised and lowered. Further, the counterweight 4 slidably engages with a counterweight guide rail 12 fixed to a wall of the ascending/descending path 100, and is guided by the counterweight guide rail 12 to be ascended and descended.
A governor, not shown, is provided in the machine chamber 110, and one end of a looped governor rope, not shown, is wound around the governor. The other end of the governor rope is wound around a pulley, not shown, disposed in a groove 130 provided in a lower portion of the ascending/descending path 100. In addition, an elevator door 13 as an elevator entrance of the car 3 is provided at the seating position 120 of each floor. The landing door 13 faces an elevator door 14 provided in the car 3 when the car 3 is stopped. The elevator door 13 is opened and closed together with the elevator door 14.
[ Structure of hoist ]
Next, the structure of the hoisting machine 7 will be described with reference to fig. 2 and 3.
Fig. 2 is a front view showing the hoist 7.
As shown in fig. 2, the hoist 7 has an equipment base 71, a hoist 72, a brake disk 73, and 2 electromagnetic brakes 74, 74. The device mount 71 is fixed to a machine room mount provided in the machine room 110 (see fig. 1). The equipment base 71 is provided with a drive motor and a bearing housing, not shown.
A rotary shaft 75 is connected to the drive motor. The winch 72 and the brake disk 73 are attached to the rotating shaft 75. The main rope 5 is wound around the hoist 72 (see fig. 1). The bearing block is disposed between the hoist 72 and the drive motor, and rotatably supports the end of the rotating shaft 75 on the drive motor side.
The brake disc 73 is provided on the opposite side of the winch 72 from the bearing seat. The brake disc 73 is fixed to the hoist 72, and is attached to the rotating shaft 75 together with the hoist 72. When the drive motor is driven, the rotation shaft 75 rotates, and the hoist 72 and the brake disc 73 rotate in conjunction with the rotation of the rotation shaft 75.
The electromagnetic brakes 74, 74 are fixed to brackets 76, 76 provided to the hoist 7. When the car 3 is stopped, the electromagnetic brakes 74 and 74 sandwich the brake disc 73 and stop the rotation of the brake disc 73 and the hoist 72. When a travel command for the car 3 is transmitted from the control panel 9, the electromagnetic brakes 74, 74 release the brake disc 73. As a result, the brake disc 73 and the winch 72 start rotating, the main rope 5 wound around the winch 72 is driven, and the car 3 connected to the main rope 5 moves up and down.
Fig. 3 is an explanatory diagram showing a state in which the electromagnetic brake 74 is removed from the bracket 76 of the hoisting machine 7. As shown in fig. 3, the electromagnetic brake 74 includes a brake body 741 configured to be able to clamp and release the brake disc 73, and a fixing portion 742 for holding the brake body 741. The fixing portion 742 is formed in a substantially rhombic plate shape, and fixes the brake main body 741 to one surface.
Fixing holes 742a for fixing to the bracket 76 are provided at both ends of the fixing portion 742 in the direction in which one diagonal line extends. The front ends 742b of the both end portions of the brackets 76, 76 fixed to the fixing portion 742 are portions that come into contact with a position adjustment jig described later, and are formed in an arc shape.
Here, the vertical direction is defined as a first direction Y, and a direction orthogonal to the first direction Y and orthogonal to the direction in which the rotation shaft 75 extends is defined as a second direction X. The direction in which the rotation axis 75 extends is defined as the third direction Z. The electromagnetic brake 74 is fixed to the bracket 76 in a posture in which the fixing hole 742a extends in the third direction Z.
The bracket 76 includes two mounting pieces 761, 761 (see fig. 11) opposed to each other in the third direction, and a wall piece 762 connecting the two mounting pieces 761, 761. The two mounting pieces 761, 761 and the wall piece 762 are respectively formed in a plate shape, and the plane of the two mounting pieces 761, 761 is substantially orthogonal to the plane of the wall piece 762.
The wall piece 762 has a flat surface 762a (see fig. 12) opposed to the front end 742b of the electromagnetic brake 74. In addition, the mounting holes 761a penetrating in the third direction Z are formed in the two mounting pieces 761, 761. The mounting holes 761a of the two mounting pieces 761, 761 face each other in the third direction Z.
The fixing portion 742 of the electromagnetic brake 74 is inserted between the two mounting pieces 761, and fixed to the bracket 76 by the rotating shaft portion 77 and the fixing pin 78 that pass through the fixing hole 742a and the mounting hole 761 a. That is, one end of the bracket 76 and the fixed portion 742 is connected to the rotating shaft portion 77, and the other end of the bracket 76 and the fixed portion 742 is connected to the fixing pin 78.
The rotation shaft 77 supports the electromagnetic brake 74 rotatably and movably in the third direction Z. On the other hand, the fixed pin 78 stops the movement of the electromagnetic brake 74 in the first direction Y, the second direction X, and the third direction Z. Therefore, as shown in fig. 3, the electromagnetic brake 74 can rotate about the rotation shaft 77 in a state where the other end portion of the fixed portion 742 of the electromagnetic brake 74 is not fixed to the other bracket 76.
In maintenance or repair work of the hoisting machine 7, the rotary shaft 77 is removed from the state shown in fig. 3, and the electromagnetic brake 74 is removed from one bracket 76. After cleaning the electromagnetic brake 74, the bracket, the brake disc 73, and the like, the electromagnetic brake 74 is attached to the brackets 76, 76.
When the electromagnetic brake 74 is attached to the brackets 76, first, one end of the fixing portion 742 of the electromagnetic brake 74 is connected to one bracket 76 using the rotating shaft portion 77. Next, the electromagnetic brake 74 stops the rotation of the rotating shaft 77, and the fixing hole 742a in the other end of the fixing portion 742 and the mounting hole 761a of the other bracket 76 face each other in the third direction Z. The fixing pin 78 is inserted through the fixing hole 742a and the mounting hole 761a, and the other end of the fixing portion 742 is fixed to the other bracket 76.
The conventional work of attaching the electromagnetic brake 74 is performed manually by two workers. Further, since the electromagnetic brake 74 is a heavy object, positioning of the electromagnetic brake 74 becomes a complicated process. Therefore, in the present embodiment, in order to achieve efficient work for attaching the electromagnetic brake 74, the position adjustment of the electromagnetic brake 74 can be easily performed using the position adjustment jig 31.
[ Structure of position adjusting jig ]
Next, the structure of the position adjustment jig 31 will be described with reference to fig. 4 to 7.
Fig. 4 is a perspective view showing the position adjustment jig 31. Fig. 5 is a front view showing the position adjustment jig 31. Fig. 6 is a plan view showing the position adjustment jig 31. Fig. 4 is a longitudinal sectional view showing the position adjustment jig 31.
The position adjustment jig 31 is provided on the other bracket 76 and used when the other end portion of the fixing portion 742 of the electromagnetic brake 74 is fixed to the other bracket 76. As shown in fig. 4 to 7, the position adjustment jig 31 includes a wedge portion 32 and an installation portion 33 continuous with the wedge portion 32.
The wedge portion 32 is formed in a wedge shape whose thickness continuously decreases (becomes thinner) from one end 32a to the other end 32 b. The wedge portion 32 has a front surface 32c, a back surface 32d opposite to the front surface 32c, and two side surfaces 32e and 32 f. The front face 32c, the back face 32d, and the two side faces 32e, 32f are continuous with the one end 32a and the other end 32b, respectively. In the present embodiment, the length from the front surface 32c (guide surface 35a described later) to the back surface 32d is defined as the thickness of the wedge 32. The length between the side surfaces 32e and 32f is defined as the width of the wedge 32.
The width of the wedge 32 is slightly equal in length to the length between the two mounting tabs 761, 761 of the bracket 76. The side surfaces 32e and 32f of the wedge 32 engage with the surfaces of the two mounting pieces 761 and 761 that face each other. The back surface 32d of the wedge 32 corresponds to an abutment surface of the position adjustment jig of the present invention, and abuts against the flat surface 762a of the bracket 76.
Two guide grooves 35, 35 are provided on the front face 32c of the wedge portion 32. Two guide grooves 35, 35 extend from one end 32a to the other end 32b of the wedge 32. The direction in which the two guide grooves 35, 35 are adjacent to each other is parallel to the third direction Z in a state where the position adjustment jig 31 is set on the bracket 76.
As shown in fig. 5, the guide groove 35 has a guide surface 35a as a bottom surface of the groove and a guide side surface 35b as a wall surface of the groove. As shown in fig. 7, the guide surface 35a is formed into a curved surface that is curved so as to decrease in thickness from one end 32a to the other end 32b of the wedge portion 32. The front end 742b of the fixing portion 742 of the electromagnetic brake 74 slidably engages with the guide surface 35 a. Further, the guide surface 35a is coated with a lubricant, and the frictional force generated between the guide surface 35a and the distal end 742b of the fixing portion 742 is reduced.
The guide side surface 35b protrudes substantially perpendicularly to the guide surface 35a on both sides thereof. The guide side surface 35b is a structure showing a specific example of the guide portion of the present invention, and engages with the fixing portion 742 of the electromagnetic brake 74 to position the fixing portion 742 in the third direction Z. The end portion of the guide side surface 35b on the one end 32a side of the wedge portion 32 has a conical surface inclined so as to widen the width of the guide surface 35 a. This allows the fixing portion 742 of the electromagnetic brake 74 to be easily engaged with the guide side surface 35 b.
When the fixing portion 742 of the electromagnetic brake 74 is positioned using the position adjustment jig 31, one of the two guide grooves 35, 35 is used. When the winch 7 is viewed from the front (third direction Z) and the fixing portion 742 of the electromagnetic brake 74 supported on the left side is positioned, or the fixing portion 742 of the electromagnetic brake 74 supported on the right side is positioned, the direction of the position adjustment jig 31 provided on the bracket 76 is opposite. Further, since the mounting position of the fixing portion 742 is biased to the side of the mounting pieces 761, 761 in the bracket 76 (see fig. 11), one guide groove 35 cannot be used in combination.
Therefore, in the present embodiment, the two guide grooves 35, 35 are provided so that the fixing portion 742 of the electromagnetic brake 74 can be positioned even if the direction of installation changes. Further, in the case where different position adjustment jigs are used depending on the installation direction, the position adjustment jig may have one guide groove. In addition, as the position adjusting jig of the present invention, it is possible to position the electromagnetic brake in various types of winches by providing 3 or more guide grooves.
The setting portion 33 is continuous with the one end 32a side of the wedge portion 32 and protrudes substantially perpendicularly from the back surface 32d and the side surfaces 32e and 32 f. As shown in fig. 4 and 6, the installation portion 33 is formed in a substantially C-shape when viewed from above. The setting portion 33 is provided on the upper surface of the bracket 76 (see fig. 3).
The installation portion 33 includes an upper surface 33a and a lower surface 33b substantially perpendicular to the back surface 32d and the side surfaces 32e and 32f of the wedge portion 32. The upper surface 33a of the setting portion 33 forms the same plane as the one end 32a of the wedge portion 32. When the setting portion 33 is disposed on the bracket 76, the lower surface 33b of the setting portion 33 abuts against the upper surface of the bracket 76.
[ mounting work of electromagnetic brake ]
Next, the operation of attaching the electromagnetic brake 74 will be described with reference to fig. 8 to 14.
Fig. 8 is an explanatory diagram showing a state where the position adjustment jig 31 is provided. Fig. 9 is an explanatory diagram showing a state in which the position of the electromagnetic brake is adjusted. Fig. 10 is an explanatory diagram showing a state in which the electromagnetic brake in which the position adjustment jig is arranged at the mounting position is held. Fig. 11 is an enlarged view of the bracket 76 and the electromagnetic brake 74 as viewed from above. Fig. 12 is an explanatory diagram showing a state in which the position of the electromagnetic brake 74 in the direction in which the rotating shaft 77 extends is adjusted. Fig. 13 is an explanatory diagram showing a state in which the position is adjusted in the direction along the plane orthogonal to the rotation shaft 77 of the electromagnetic brake 74. Fig. 14 is an explanatory diagram showing a state in which the electromagnetic brake 74 is disposed at the mounting position.
As shown in fig. 8, when the electromagnetic brake 74 is attached to the bracket 76, first, one end of the fixing portion 742 of the electromagnetic brake 74 is connected to one bracket 76 via the rotating shaft portion 77. Thus, the electromagnetic brake 74 can be axially supported rotatably about the rotating shaft 77 extending in the third direction Z. In addition, the electromagnetic brake 74 is movable in the third direction Z along the rotation shaft portion 77.
Next, as shown in fig. 8 and 11, the position adjustment jig 31 is provided on the upper surface of the other bracket 76. The position adjustment jig 31 may be provided before the connection of one bracket 76 to the electromagnetic brake 74.
When the position adjusting jig 31 is set on the upper surface of the other bracket 76, the lower surface 33b of the setting portion 33 of the position adjusting jig 31 abuts on the upper surface of the other bracket 76. The other end 32b of the wedge 32 of the position adjustment jig 31 is inserted between the mounting pieces 761, 761 of the bracket 76. The side surfaces 32e and 32f of the wedge 32 abut against the mounting pieces 761 and 761 of the bracket 76, and the back surface 32d of the wedge 32 abuts against the wall piece 762 of the bracket 76. Thereby, the position adjustment jig 31 is engaged with the other bracket 76.
Next, as shown in fig. 9, the electromagnetic brake 74 is rotated about the rotating shaft 77, and the other end of the fixed portion 742 is engaged with the guide groove 35 of the position adjustment jig 31. At this time, as shown in fig. 11 and 12, the fixing portion 742 of the electromagnetic brake 74 is guided by the conical surface of the guide side surface 35b of the guide groove 35 and moves in the third direction Z. Thus, the fixing portion 742 of the electromagnetic brake 74 is disposed between the guide side surfaces 35b, 35b of the guide groove 35, and the fixing portion 742 is positioned in the third direction Z.
When the electromagnetic brake 74 is further rotated, as shown in fig. 13, the front end 742b of the fixing portion 742 engages with the guide surface 35a of the guide groove 35. Thereby, the position adjusting jig 31 serves as a stopper to lock the rotation of the electromagnetic brake 74. Therefore, even if the operator releases the hand holding the electromagnetic brake 74, the electromagnetic brake 74 can be held (supported) by the position adjustment jig 31. At this time, if the center of the fixing hole 742a in the fixing portion 742 coincides with the center of the mounting hole 761a in the mounting piece 761 in the third direction Z, the positioning of the fixing portion 742 with respect to the bracket 76 is completed.
As shown in fig. 13, in the third direction Z, when the center of the fixing hole 742a in the fixing portion 742 does not coincide with the center of the mounting hole 761a in the mounting piece 761, the position adjustment jig 31 is moved in a direction in which it is pulled out from the bracket 76 (a direction orthogonal to the upper surface of the bracket 76). Thereby, the fixing portion 742 of the electromagnetic brake 74 rotates along the guide surface 35a according to the moving distance of the position adjustment jig 31.
Then, as shown in fig. 14, when the center of the fixing hole 742a coincides with the center of the mounting hole 761a in the third direction Z, the movement of the position adjustment jig 31 in the direction of being pulled out from the bracket 76 is stopped. Thereby, the position adjusting jig 31 serves as a stopper, and the rotation of the electromagnetic brake 74 is locked, so that the fixing portion 742 is positioned in the first direction Y and the second direction X.
Next, as shown in fig. 10, a fixing pin 78 is inserted through the fixing hole 742a and the mounting hole 761a, and the fixing portion 742 is fixed to the bracket 76. As a result, the electromagnetic brake 74 is attached to the bracket 76. Then, the position adjusting jig 31 is pulled out from the bracket 76.
As described above, the wedge portion 32 of the position adjustment jig 31 is formed in a wedge shape whose thickness decreases from the one end 32a to the other end 32 b. The thickness of the other end 32b of the wedge 32 is smaller than the distance (shortest distance) from the front end 742b of the fixing portion 742 to the wall piece 762 of the bracket 76. Therefore, the wedge portion 32 of the position adjustment jig 31 can be easily pulled out from between the fixing portion 742 of the electromagnetic brake 74 and the wall piece 762 of the bracket 76.
When the position adjusting jig 31 is excessively moved in a direction of being pulled out from the bracket 76 in adjusting the attachment position of the fixing portion 742 to the bracket 76, the tip 742b of the fixing portion 742 comes off the guide surface 35a of the position adjusting jig 31.
Therefore, in the present embodiment, the wedge position recognition unit 37 (see fig. 4) is formed on the side surfaces 32e and 32f of the wedge portion 32, and the operator confirms the upper limit of the movement distance in the direction of pulling out from the bracket 76. That is, the wedge position recognition unit 37 recognizes the position of the other end 32b of the wedge 32 with respect to the bracket 76. This prevents the fixing portion 742 of the electromagnetic brake 74 from slipping between the mounting pieces 761, 761 of the bracket 76, and the electromagnetic brake 74 does not collide with the brake disk 73 or the like.
As the wedge position recognition unit of the present invention, for example, scales, marks, and characters can be applied. The wedge position recognition unit according to the present invention may be configured to recognize the upper limit of the approach movement distance by color.
In addition, as the position adjusting jig of the electromagnetic brake according to the present invention, a physical stopper may be provided, and the operator may recognize the upper limit of the moving distance in the direction of pulling out from the bracket 76. In this case, after the fixing portion 742 is fixed to the bracket 76, the position adjustment jig 31 is pulled out from the bracket 76 after the stopper is released.
[ conclusion ]
As described above, the position adjusting jig 31 for the electromagnetic brake according to the above embodiment is configured to adjust the position of the electromagnetic brake 74 attached to the bracket 76 of the hoisting machine 7, and the bracket 76 includes the attachment pieces 761, 761 to which the fixing portion 742 of the electromagnetic brake 74 is attached, and the wall piece 762 perpendicular to the attachment pieces. The position adjustment jig 31 includes a wedge portion 32 having a guide surface 35a, a guide side surface 35b (guide portion), and a back surface 32d (contact surface). The guide surface 35a positions the fixing portion 742 of the electromagnetic brake 74 in a first direction Y and a second direction X orthogonal to the first direction Y. The guide side surface 35b performs positioning in a third direction Z orthogonal to the first direction Y and the second direction X of the fixing portion 742 of the electromagnetic brake 74. The rear face 32d abuts the wall 762 of the bracket 76. The wedge 32 is sandwiched between the wall 762 of the bracket 76 and the fixing portion 742 of the electromagnetic brake 74, thereby holding the fixing portion 742 of the electromagnetic brake 74 at the mounting position of the bracket 76.
Thus, the fixing portion 742 of the electromagnetic brake 74 can be easily positioned by the guide surface 35a and the guide side surface 35 b. Further, since the wedge portion 32 holds the fixing portion 742 of the electromagnetic brake 74 at the attachment position of the bracket 76, the operator does not need to hold the electromagnetic brake 74 until the electromagnetic brake 74 is fixed to the bracket 76. This reduces the burden on the operator and reduces the time required for the work of attaching the electromagnetic brake. As a result, the work of attaching the electromagnetic brake 74 can be performed efficiently, and the work of attaching the electromagnetic brake 74 can be performed easily.
Further, in the electromagnetic brake position adjustment jig 31 according to the above-described embodiment, the one end 32a in the direction in which the guide surface 35a of the wedge portion 32 extends is thicker than the gap between the fixing portion 742 of the electromagnetic brake 74 disposed at the attachment position of the bracket 76 and the wall piece 762 of the bracket 76. Accordingly, it is necessary to be able to engage the fixing portion 742 of the electromagnetic brake 74 with the guide surface 35a of the wedge portion 32, and to be able to easily position the electromagnetic brake 74. The other end 32b opposite to the one end 32a of the wedge 32 is thinner than the gap between the fixing portion 742 of the electromagnetic brake 74 disposed at the attachment position of the bracket 76 and the wall piece 762 of the bracket 76. This makes it possible to easily pull out the wedge portion 32 of the position adjustment jig 31 from between the fixing portion 742 of the electromagnetic brake 74 and the wall piece 762 of the bracket 76.
The wedge portion 32 of the position adjustment jig 31 of the electromagnetic brake according to the above embodiment becomes continuously thinner from the one end 32a to the other end 32 b. Thus, the moving distance of the fixing portion 742 of the electromagnetic brake 74 can be gradually changed according to the distance by which the wedge portion 32 is pulled out from the bracket 76. As a result, the movement distance of the fixing portion 742 of the electromagnetic brake 74 in the first direction Y and the second direction X can be finely adjusted.
The position adjustment jig 31 for the electromagnetic brake according to the above embodiment includes the wedge position recognition portion 37 for recognizing the position of the other end 32b of the wedge portion 32 with respect to the bracket 76. This can prevent the fixing portion 742 of the electromagnetic brake 74 from slipping between the mounting pieces 761, 761 of the bracket 76, and the electromagnetic brake 74 from colliding with the brake disk 73 or the like.
In addition, the guide side surfaces 35b (guide portions) of the position adjustment jig 31 of the electromagnetic brake according to the above embodiment are provided in plural numbers in the wedge portion 32 and are adjacent to each other in the third direction Z. This enables positioning of the fixing portion 742 of the electromagnetic brake 74 even if the direction of installation changes (even if the direction in which the guide surface 35a faces changes by 180 degrees). In addition, positioning of the electromagnetic brake in various winches (carriages) is possible.
The electromagnetic brake 74 positioned by the electromagnetic brake position adjustment jig 31 of the above embodiment is supported by the rotating shaft 77 extending in the third direction, and is rotated about the rotating shaft 77, whereby the fixing portion 742 is disposed at the mounting position of the bracket 76. The guide surface 35a of the wedge 32 is formed into a curved surface. Thereby, the fixing portion 742 is in line contact with the guide surface 35a, and a frictional force generated between the guide surface 35a and the fixing portion 742 when the wedge 32 is pulled out from between the fixing portion 742 and the bracket 76 is reduced, so that a force required for the pulling-out operation of the wedge 32 can be reduced.
Further, a lubricant is applied to the guide surface 35a of the wedge portion 32 in the position adjustment jig 31 of the electromagnetic brake according to the above embodiment. This reduces the frictional force generated between the guide surface 35a and the fixing portion 742 when the wedge portion 32 is pulled out from between the fixing portion 742 and the bracket 76, and thus the force required for the pulling-out operation of the wedge portion 32 can be reduced.
The position adjustment jig 31 of the electromagnetic brake according to the above embodiment includes the installation portion 33 that protrudes from the wedge portion 32 and is installed on the upper surfaces of the mounting pieces 761, 761 and the wall piece 762. This enables the operator to position the fixing portion 742 of the electromagnetic brake 74 without holding the position adjustment jig 31, thereby reducing the burden on the operator.
The embodiment of the position adjustment jig for an electromagnetic brake according to the present invention is described above including the operational effects thereof. However, the position adjusting jig for the electromagnetic brake according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention described in the claims.
For example, the guide surface 35a is formed in a curved surface in the above embodiment. However, the guide surface of the present invention may be formed as a slope inclined so as to decrease in thickness from one end of the wedge portion to the other end thereof. In the above embodiment, the wedge portion 32 is formed to be continuously thinner from the one end 32a to the other end 32 b. However, the wedge portion of the present invention may have a structure in which the thickness is gradually (stepwise) decreased discontinuously from one end to the other end.
In the above embodiment, the guide groove 35 is provided in the wedge portion 32 as the guide portion, thereby forming the guide surface 35a and the guide side surface 35b (guide portion). However, the wedge portion of the present invention may have a structure in which one surface is a guide surface and a guide rail (guide portion) is provided on the guide surface.
Claims (8)
1. A position adjusting jig for an electromagnetic brake, which adjusts the position of the electromagnetic brake mounted on a bracket of a hoist, is characterized in that,
the bracket has a mounting piece for mounting the fixing part of the electromagnetic brake and a wall piece orthogonal to the mounting piece,
a wedge portion having a guide surface for positioning a fixing portion of the electromagnetic brake in a first direction and a second direction orthogonal to the first direction, a guide portion for positioning a fixing portion of the electromagnetic brake in a third direction orthogonal to the first direction and the second direction, and an abutment surface for abutting against a wall piece of the bracket,
the wedge portion is sandwiched between the wall piece of the bracket and the fixing portion of the electromagnetic brake, and thereby holds the fixing portion of the electromagnetic brake at the mounting position of the bracket.
2. The position adjustment jig of an electromagnetic brake according to claim 1,
one end of the wedge portion in the direction in which the guide surface extends is thicker than a gap between a fixing portion of the electromagnetic brake disposed at the mounting position of the bracket and a wall piece of the bracket,
the other end of the wedge portion opposite to the one end is thinner than a gap between a fixing portion of the electromagnetic brake arranged at the mounting position of the bracket and the wall piece of the bracket.
3. The position adjustment jig of an electromagnetic brake according to claim 2,
the wedge portion becomes continuously thinner from the one end to the other end.
4. The position adjustment jig of an electromagnetic brake according to claim 2,
the bracket includes a wedge position recognition unit for recognizing a position of the other end of the wedge portion with respect to the bracket.
5. The position adjustment jig of an electromagnetic brake according to claim 1,
the guide portions are provided in plurality on the wedge portion, and are adjacent to each other in the third direction.
6. The position adjustment jig of an electromagnetic brake according to claim 1,
the electromagnetic brake is supported by a rotating shaft extending in the third direction, and the fixing portion is disposed at a mounting position of the bracket by rotating about the rotating shaft,
the guide surface of the wedge portion is formed as a curved surface.
7. The position adjustment jig of an electromagnetic brake according to claim 1,
and applying a lubricant to the guide surface of the wedge portion.
8. The position adjustment jig of an electromagnetic brake according to claim 1,
and a mounting portion projecting from the wedge portion and mounted on the upper surfaces of the mounting piece and the wall piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019215151A JP7157728B2 (en) | 2019-11-28 | 2019-11-28 | Electromagnetic brake positioning jig |
| JP2019-215151 | 2019-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112850415A true CN112850415A (en) | 2021-05-28 |
| CN112850415B CN112850415B (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011179413.2A Active CN112850415B (en) | 2019-11-28 | 2020-10-29 | Position adjusting clamp of electromagnetic brake |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7157728B2 (en) |
| CN (1) | CN112850415B (en) |
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| CN205312840U (en) * | 2015-07-01 | 2016-06-15 | 东芝电梯株式会社 | Stopper loading and unloading anchor clamps |
| JP2016124691A (en) * | 2015-01-07 | 2016-07-11 | 株式会社日立ビルシステム | Brake maintenance equipment for elevator |
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| CN107618964A (en) * | 2016-07-15 | 2018-01-23 | 株式会社日立制作所 | Winch for elevator and lift appliance |
| JP2018184985A (en) * | 2017-04-25 | 2018-11-22 | 株式会社日立ビルシステム | Gap adjustment jig of electromagnetic brake, and gap adjustment method of electromagnetic brake |
| WO2019155508A1 (en) * | 2018-02-06 | 2019-08-15 | 株式会社日立製作所 | Electronic brake device, hoisting machine, and elevator |
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| JPH0344455Y2 (en) * | 1986-06-02 | 1991-09-18 | ||
| JP2006193248A (en) * | 2005-01-12 | 2006-07-27 | Mitsubishi Electric Corp | Hoisting machine for elevator |
| JP2007161466A (en) * | 2005-12-16 | 2007-06-28 | Hitachi Building Systems Co Ltd | Working platform for electromagnetic brake device |
| JP2016037336A (en) * | 2014-08-06 | 2016-03-22 | 株式会社日立製作所 | Elevator device and hoist for elevator device |
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| JP2016124691A (en) * | 2015-01-07 | 2016-07-11 | 株式会社日立ビルシステム | Brake maintenance equipment for elevator |
| CN105775970A (en) * | 2015-01-14 | 2016-07-20 | 株式会社日立制作所 | Elevator tractor and elevator tractor assembling method |
| CN205312840U (en) * | 2015-07-01 | 2016-06-15 | 东芝电梯株式会社 | Stopper loading and unloading anchor clamps |
| CN107618964A (en) * | 2016-07-15 | 2018-01-23 | 株式会社日立制作所 | Winch for elevator and lift appliance |
| JP2018184985A (en) * | 2017-04-25 | 2018-11-22 | 株式会社日立ビルシステム | Gap adjustment jig of electromagnetic brake, and gap adjustment method of electromagnetic brake |
| WO2019155508A1 (en) * | 2018-02-06 | 2019-08-15 | 株式会社日立製作所 | Electronic brake device, hoisting machine, and elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7157728B2 (en) | 2022-10-20 |
| JP2021084768A (en) | 2021-06-03 |
| CN112850415B (en) | 2022-08-09 |
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